Here is what I have so far when use the DATE_ADD function in MySQL Workbench 6.3, but I have been struggling to output the hrs:mins:secs (you don't see the code for that output because I didn't write it here). I know that I can use INTERVAL HOUR_SECOND to display hrs:mins:secs but I don't understand how it works.
SELECT DATE_ADD('2017-01-26', INTERVAL 31 DAY) AS '31 Days';
SELECT DATE_ADD('2017-01-26', INTERVAL 31 DAY) AS '31 Days';